Column : Shodex Asahipak ES-502C 7C (7.5mmID*100mm) Eluent : 25mM Boric acid buffer + 75mM Succinic acid + 20mM EDTA(pH8.0) Flow rate : 1.0mL/min Detector : EC(700mV, VS, Ag/AgCl) Column temp. : 40℃